What is expand ((x+1)(x-1))/2 ?

The solution to expand ((x+1)(x-1))/2 is (x^2)/2-1/2

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

expand ((x+1)(x-1))/2

expand

\frac{( x + 1 ) ( x - 1 )}{2}

\frac{x ^{2}}{2} - \frac{1}{2}

Solution steps

\frac{( x + 1 ) ( x - 1 )}{2}

Expand

(x + 1) (x - 1) : x^{2} - 1

= \frac{x ^{2} - 1}{2}

Apply the fraction rule:

\frac{a \pm b}{c} = \frac{a}{c} \pm \frac{b}{c}

\frac{x ^{2} - 1}{2} = \frac{x ^{2}}{2} - \frac{1}{2}

= \frac{x ^{2}}{2} - \frac{1}{2}

(t + c) e

(9 e^{9 t} - 9)^{2}

\frac{( x - 1 ) ( x - 10 )}{2}

(4 v^{2} y^{2} + 3 y^{2}) (v d y + y d v)

\frac{( n - 2 ) ( n - 3 )}{( n + 2 ) ( n + 1 )}

What is expand ((x+1)(x-1))/2 ?
The solution to expand ((x+1)(x-1))/2 is (x^2)/2-1/2